We're running Taming the Flames 4 times and then Desert Caravan 6 times, followed by every protection quest in the game.

I did another look at what's available, and I'm pretty good with what I posted earlier, give or take (order doesn't matter on the 1st three):
1A) Xorian Cipher
1B) Stormcleave Outpost
1C) Haunted Library
2) Everyone takes level 11
3) Shadow Crypt

We can call an audible on #3 depending on timing and people getting sleepy since there's tons of other stuff for us to tackle while we're all level 11. As mentioned by Az a few times, we're going to want to complete as much content as possible now by holding levels because content is going to get pretty thin when our toons are level 14 or so.